24/7 Emergency HVAC Repair
in North Aurora, IL
Stay warm and safe during Illinois winters with trusted heating service from Custom Service Heating and Cooling. From emergency furnace repairs to new system installations, our technicians are ready to help restore comfort to your home.
24/7 Heating & Cooling Help
Heating or cooling suddenly stopped working? Don’t panic, we’ve got you covered. At Custom Service Heating and Cooling, we’re available 24 hours a day, 7 days a week, including weekends and holidays, for fast and reliable emergency HVAC repair in North Aurora and across Kane County.

When to Call for Emergency HVAC Repair:
🔥 No Heat During Cold Weather
Furnace not turning on, blowing cold air, or shutting down unexpectedly.❄️ No Cooling in Extreme Heat
AC blowing warm air or not responding at all during summer peaks.⚠️ Strange Noises, Smells, or Electrical Burning
Rattling, squealing, or burning smells could mean a serious issue.💧 Water or Refrigerant Leaks
Pooled water or visible leaks under your unit should be addressed ASAP.🧊 Frozen Coils or Constant Short-Cycling
Sudden drop in airflow or units turning on and off too quickly.

24/7 Emergency AC Repairs
Need urgent help?
Call 630-231-5660 now to speak with a live HVAC expert. We’ll walk you through your issue and dispatch a technician to restore your comfort — fast.
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Check out our Reviews!
EXCELLENT Based on 172 reviews Joseph Madonia2025-08-22Trustindex verifies that the original source of the review is Google. Highly recommend Custom! Bob is very responsive and knowledgeable. Charlotte Ritchey2025-08-20Trustindex verifies that the original source of the review is Google. After returning from vacation I waked into a very warm house. The thermostat was nonfunctional. I called Custom Heating and Bob was able to come out in less than an hour, diagnose the problem and fixed it. Great friendly and professional service. I highly recommend this business for your HVAC services. Cheryl Grace2025-08-13Trustindex verifies that the original source of the review is Google. Prompt, dependable and customer-focused Ted Close2025-08-08Trustindex verifies that the original source of the review is Google. Service was excellent! Nancy Pearn2025-07-23Trustindex verifies that the original source of the review is Google. I cannot even begin to tell you how much I love this company! The professionalism and quality of work is amazing. Bob is so topnotch. We had our air and furnace replaced. He makes a selection of options that would work for your home. You then are able to choose what works for your budget/needs. When he leaves your home after your consultation you feel assured that you are getting quality care. Thanks Bob! Craig Wilson2025-07-09Trustindex verifies that the original source of the review is Google. Jose was a really nice guy who explained things in a very easy to understand way. He took extra time in cleaning our units and I appreciate how cool he was with our barking dog. Padgett E2025-07-02Trustindex verifies that the original source of the review is Google. Jose came to clean our AC unit. He was prompt, courteous and knowledgeable! Brett Czech2025-06-30Trustindex verifies that the original source of the review is Google. Bob has always been great to work with—punctual, professional, and incredibly efficient every time. Scheduling service is simple and stress-free, and they even call with reminders (how great is that?). Paying and getting receipts is just as easy. Any work that is suggested or completed is explained and Bob is straightforward with letting you know when something is recommended, needed, or not needed. You can tell this is a family-owned company because it shows in the level of care and pride they take in their work. They genuinely value their customers and it comes through in every interaction. Highly recommend!Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more